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#1576 Re: Not So Free Chat » Fixing Americas car industry » 2024-05-27 14:33:54
Seems that the efforts to go electric has resulted in thinking about the cost to charge and use.
What is a Solar Carport? Everything You Need to Know
Pros
Solar carports simultaneously protect vehicles from the sun and other elements while generating electricity.
They are a relatively cheap structure to build, and just slightly more complicated than regular ground-mounted solar panels.
Like any other solar system, a carport with panels can reduce your utility bills and provide power during a blackout.
A solar carport enables you to utilize your EV as an electricity storage bank.Cons
A solar carport is a relatively expensive way to provide shade for a vehicle.
Construction will require finding adequate space on your property.
Connecting a solar carport to the grid or home battery bank can be complicated and require extra infrastructure.
#1577 Re: Meta New Mars » SpaceNut Postings » 2024-05-27 14:16:39
Since guest is not an actual user it has to do with IP contacts or "Server load" which is not going to get a set of would-be spammer ip's to block such as a BOT...
#1578 Re: Meta New Mars » SpaceNut Postings » 2024-05-27 08:50:01
I was one and was checking the forums front page and saw a huge amount of guests.
Total number of registered users: 19,630
Total number of topics: 8,482
Total number of posts: 219,428
Newest registered user: GStanley2023
Registered users online: 1Guests online: 149
Online: SpaceNut
#1579 Re: Exploration to Settlement Creation » Buried geodesic domes » 2024-05-27 08:33:00
I am wondering if the bricks or compacted materials nearest to the internal volume where mixed with a binder before laying the material down with a 3d printer followed by insulation and then with the compacted outside layer.
Your drawing making the layers start out thicker to thinner as it reaches the top of the dome makes sense for the pressure inside.
#1580 Re: Business Proposals » Starting a new Company » 2024-05-27 08:17:29
Having lived the semiconductor design working for Data General and Cabletron of the past I did see many of these as we transited from Vaccuum tubes to transistor-to-transistor logic and more as they grow to large scale semiconductor IC's.
#1581 Re: Meta New Mars » RobertDyck Postings » 2024-05-27 08:06:05
It's not the only business proposal to build a structure for living in as I had suggested to use the analog and others to create the experience of space living here on earth. Market is via multiple methods to get what is in the offering to the people of earth. Depending on size we have opened up not just housing but industrial and other depending on what is implemented in the design.
Have seen the old MS office project but have libre products on my computer so will download the project and play with the software that its task based for topic discussion which is how we are currently setup to do just as the big ship unfolded.
#1582 Re: Meta New Mars » Housekeeping » 2024-05-27 07:58:23
Well, why do we have topics if we keep putting the discussion in everywhere but the topic that it's intended for. While the GW topic is intended to be a like or temporary location it's not the topic where the remaining details are located. Consolidation of information is what brings discussion towards completion of a project paper.
The Libre office project software can output the data of tasks that can be converted for a wiki timeline topic of task creation. Call it timeline management. The tasks are further discussed as each are inputted into, the project timeline. The tasks are collected by the project owner and complied same as the Oldfart1939 Mars Expedition Number One, RobertDyck's Largeship and steven's cell Storage into the owner's master project information posts.
We need to be almost compulsive to putting content to where it belongs.
#1583 Re: Home improvements » Wood stove thermal heat creation and storage » 2024-05-26 15:20:13
Recovering electricity from heat storage hits 44% efficiency
The research team reports that their new device has a power conversion efficiency of 44% at 1,435°C, within the target range for existing high-temperature energy storage (1,200°C-1,600°C). It surpasses the 37% achieved by previous designs within this range of temperatures.
In a heat battery, thermophotovoltaics would surround a block of heated material at a temperature of at least 1,000°C. It might reach that temperature by passing electricity from a wind or solar farm through a resistor or by absorbing excess heat from solar thermal energy or steel, glass or concrete production.
The heated storage material radiates thermal photons with a range of energies. At 1,435°C, about 20-30% of those have enough energy to generate electricity in the team's thermophotovoltaic cells. The key to this study was optimizing the semiconductor material, which captures the photons, to broaden its preferred photon energies while aligning with the dominant energies produced by the heat source.
A recent study found stacking two air bridges improves the design, increasing both the range of photons converted to electricity and the useful temperature range for heat batteries.
"We're not yet at the efficiency limit of this technology. I am confident that we will get higher than 44% and be pushing 50% in the not-too-distant future," said Forrest, who also is the Paul G. Goebel Professor of Engineering and professor of electrical engineering and computer science, materials science and engineering, and physics.
https://pubs.acs.org/doi/10.1021/acsenergylett.4c00774
#1586 Re: Human missions » Boeing Starliner OFT-2 » 2024-05-26 14:57:22
It might be time for NASA to bail on Boeing's Starliner there was a time when Starliner was actually a very promising option for space exploration.
Unfortunately, nearly a decade later, any hopes and dreams that might have rested on Starliner's shoulders have since started to fall away, replaced by successes from other companies - like SpaceX - and repeated failures and issues plaguing Boeing's capsule.
It's been over ten years since Boeing won its NASA contract to develop the spacecraft to carry astronauts to the International Space Station, and now that we're in the final stretch, the spacecraft has yet to fly any humans to space. Not only has the program seen repeated delays - including the most recent launch holds - but the program has also been plagued by manufacturing issues.
Things like corroded valves and even severe software errors have helped hold Starliner back while SpaceX and its Dragon spacecraft have continued to step in to fill that void. Perhaps one of the most egregious issues was the fact that Boeing discovered issues with the design of its parachute system and the fact that it had used flammable tape inside the capsule. This delayed the first crewed launch from its original 2023 launch date, and no, over a year later, we're still waiting.
#1587 Re: Life support systems » Solar chimeys - Feasible? » 2024-05-26 10:13:47
Even a small solar chimney can be used to create cooling for a building occupant.
#1588 Re: Human missions » Boeing Starliner OFT-2 » 2024-05-26 10:05:46
It's about for filling the Nasa contract to which they are getting close to breeching I am sure where they will be penalized.
#1589 Re: Science, Technology, and Astronomy » Thermal Energy Storage » 2024-05-26 08:36:04
Here is another brick Energy-smart bricks keep waste out of landfill
make bricks with a minimum of 15% waste glass and 20% combusted solid waste (ash), as substitutes for clay.
More information: Yuecheng Xin et al, Utilizing rejected contaminants from the paper recycling process in fired clay brick production, Construction and Building Materials (2023).
https://dx.doi.org/10.1016/j.conbuildmat.2023.134031Yuecheng Xin et al, Energy efficiency of waste reformed fired clay bricks-from manufacturing to post application, Energy (2023).
https://dx.doi.org/10.1016/j.energy.2023.128755Yuecheng Xin et al, A Viable Solution for Industrial Waste Ash: Recycling in Fired Clay Bricks, Journal of Materials in Civil Engineering (2023).
https://dx.doi.org/10.1061/JMCEE7.MTENG-15165Yuecheng Xin et al, Transformation of waste-contaminated glass dust in sustainable fired clay bricks, Case Studies in Construction Materials (2022).
https://dx.doi.org/10.1016/j.cscm.2022.e01717
#1590 Re: Single Stage To Orbit » SSTO Engine Technology » 2024-05-26 08:05:14
With a heavy ship in the near approximate launch mass of a falcon Heavy 9 and this fuel type.
PROPELLANT LOX / RP-1
ENGINES MERLIN SEA LEVEL
Merlin is a family of rocket engines developed by SpaceX for use on its Falcon 1, Falcon 9 and Falcon Heavy launch vehicles. Merlin engines use RP-1 and liquid oxygen as rocket propellants in a gas-generator power cycle. The Merlin engine was originally designed for recovery and reuse.
THRUST 845 kN / 190,000 lbf
ENGINES MERLIN VACUUM
Merlin Vacuum features a larger exhaust section and a significantly larger expansion nozzle to maximize the engine’s efficiency in the vacuum of space. Its combustion chamber is regeneratively cooled, while the expansion nozzle is radiatively cooled. At full power, the Merlin Vacuum engine operates with the greatest efficiency ever for an American-made hydrocarbon rocket engine.
THRUST 981 kN / 220,500 lbf
#1591 Re: Single Stage To Orbit » SSTO Airframe and TPS Materials » 2024-05-26 08:00:22
Yes, with more dense fuels it makes the mass of launch less as we are not making a very large tank to hold LH2.
It also means that you are planning a ship that is smaller than a Falcon 9 heavy mass of 1,420,788 kg fully loaded ready for launch.
https://www.omnicalculator.com/physics/specific-impulse
There are 2 posts with content for SSTO.
#1592 Re: Single Stage To Orbit » SSTO Operating Costs » 2024-05-26 07:42:13
Space x Falcon 9 is listing for 62 million and was targeted for 50 plus flights.
Of course, Space x is making money even at that level and if we are launching 50 or 100 people to Leo then man is getting to orbit for less that tourist trips to the ISS.
#1593 Re: Science, Technology, and Astronomy » Thermal Energy Storage » 2024-05-25 19:07:05
These bricks conduct electricity and combine to create a powerful thermal battery
At the back of a small warehouse laboratory buzzing with fans and motors, an MIT spinoff company called Electrified Thermal Solutions is operating something its founders call the Joule Hive, a thermal battery the size of an elevator.
The Hive is a large, insulated metal box loaded with dozens of white-hot ceramic bricks that convert electricity to heat at temperatures up to 1800 degrees Celsius—well beyond the melting point of steel—and with enough thermal mass to hold the heat for days.
As a grad student at MIT, Stack wondered if firebricks, the kind commonly used in residential fireplaces and industrial kilns, could be a less expensive, more durable solution. Bricks do not typically conduct electricity, but by slightly altering the recipe of the metal oxides used to make them, he and ETS co-founder Joey Kabel were able to create bricks that could essentially take the place of wires to conduct electricity and generate heat.
#1594 Re: Human missions » Spacesuits - personal spaceship » 2024-05-25 18:38:32
SpaceX reveals EVA suit design as Polaris Dawn mission approaches
SpaceX Unveils Revolutionary Extravehicular Activity (EVA) Suit
Shiny helmet shield but what I notice is the pleads in the knees.
#1595 Re: Meta New Mars » Apache Internal Server Error AISE » 2024-05-25 18:28:26
I think another feature for the forum would be a excel paste view or internal viewer for such content.
I will go to GW's web site to look at the information.
I see that the upload file share automatically gives the sheets display rendering.
Maybe a dropbox topic with the content links makes sense for each new forum as it applies.
#1596 Re: Meta New Mars » Housekeeping » 2024-05-25 18:25:32
It appears that the forums image php portion of the display was not able to do the file extension *.tif but I found the other that did display.
#1597 Re: Not So Free Chat » Climbing out of poverty » 2024-05-25 17:58:44
#1598 Re: Single Stage To Orbit » SSTO Airframe and TPS Materials » 2024-05-25 17:53:27
0https://en.wikipedia.org/wiki/Single-stage-to-orbit
https://en.wikipedia.org/wiki/Single-st … ission.tif
I notice that the yarn used is the same to what was used for the Adapt heatshield materials.
#1599 Re: Human missions » International Space Station (ISS / Alpha) » 2024-05-25 12:36:13
10 Things About Living On The International Space Station You Probably Never Realized Construction began on the ISS in the early 1990s, with cooperation between several nations and space agencies required to complete it before its launch in 1998.
The very name of the International Space Station suggests that it is a worldwide endeavor, rather than something under the control of a single country. While NASA of the United States and Russia's Roscosmos are most closely associated with the ISS, a number of other nations were also involved in the design of the facility and continue to help with its operation through a series of partnerships and agreements -- something that is necessary considering the huge cost of the project, which is estimated to be more than $100 billion.
JAXA of Japan, the European Space Agency, and the Canadian Space Agency have all contributed, with countries such as Italy, Germany, France, Spain, and the United Kingdom all involved. Brazil was also a partner between 1997 and 2007, and there have been discussions about other nations, such as China, also joining.
According to the Kennedy Space Center, the average mission length for astronauts going to the ISS is around six months. With the station orbiting Earth 16 times a day, the crew will go around the planet thousands of times during their mission.
Some astronauts will spend a lot more time on the ISS. Scott Kelly "spent 340 days, almost a full year, on the facility. Meanwhile, both Frank Rubio and Mark Vande Hei have had longer missions, staying on the ISS for 371 and 355 days, respectively. Peggy Whitson has the current U.S. record for total cumulative time on the ISS, spending 655 days on it across multiple missions.
Approximately 270 people have visited the ISS from some 21 countries.
#1600 Re: Home improvements » Home Solar System to Achieve Energy Usage Offset » 2024-05-25 12:25:22
Powering Your Home: The Ultimate Guide to Solar Solutions
Understanding the Basics of Solar Power Systems
Solar power systems consist of solar panels, an inverter, and a power meter. The solar panels, usually installed on the rooftop, capture sunlight and convert it into direct current (DC) electricity. The inverter then transforms this DC electricity into alternating current (AC) electricity that can be used to power your home. The power meter monitors the amount of electricity your solar power system produces and the amount of electricity you consume. Any excess electricity generated by your system can be fed back into the grid, resulting in credit on your electricity bill.If the solar panels produce less electricity than your home requires, you will still be able to draw power from the grid. This is especially beneficial on cloudy or rainy days when sunlight may be limited. If your solar system produces more electricity than you use, the excess electricity can be stored in batteries for later use. This is known as a grid-tied with battery backup system.
While the upfront cost of installing solar panels may initially seem overwhelming, it is crucial to consider the long-term advantages. Investing in solar power systems can lead to substantial savings on electricity bills over time.
On average, homeowners can save anywhere between $10,000 to $30,000 over 20 years by transitioning to solar energy. Furthermore, recent technological advancements and increased market competition have considerably reduced the cost of solar panels. Moreover, government incentives and tax credits for renewable energy have made solar power systems even more affordable for homeowners.
Choosing the Right Solar Power System for Your Home
Selecting the appropriate solar power system for your home is a crucial step in ensuring maximum efficiency and cost-effectiveness. Several factors come into play, such as the geographical location of your home, the angle and size of your rooftop, and your regular electricity consumption. A solar consultant can help you assess these factors and guide you in choosing the right size and type of solar power system. You could opt for a grid-tied system, a grid-tied with battery backup system, or an off-grid system, each with its own advantages and suited for different needs.A good idea if you’re new to solar panels is to start with a grid-tied system with net metering. This allows you to stay connected to the grid while still being able to benefit from net energy metering, resulting in potentially lower electricity bills.
Then again areas impacted by strong conditions will mean you have a different design use.
