how much enthalpy does franci lose when he gets on the balanci for 34.4 minutes for a distance of 56 km and plays hardcore dnb.

With regards the following question: A cylinder fitted with a piston has a volume of 0.1 m3 and contains 0.5 kg of steam at 0.4 MPa. Heat is transferred to the steam until the temperature is 300 °C, as a result the volume increases to three times and the change in internal energy is 680.1 kJ. De

I own a natural skincare brand where most products contain just 2 or 3 ingredients. Our current process looks like this- • We melt hard oils/butters in a large oil melter • We dispense these oils into small bowls and mix with a liquid (carrier) oil • We let the mixture cool and we blend with a ha

Please, visit my website  https://www.granovskiy.com/ to know: 1). How to generate power from natural gas (methane) without greenhouse gas emissions; 2). How to generate power from low-temperature waste heat in a new way; 3). How to produce heat at a temperature higher than the temperature of

I have a salt-water aquarium built into a dividing wall. it houses a 180-gallon display tank over another 180-gallon tank that houses the filtration. Each tank is 6'l x 2't x 2'w. and there is cabinetry on either side of the tanks. I have an exhaust fan at top of the cabinet that draws in air from t

Hey guys, I'm looking the way to determine time of drying (using heat) for something that doesn't absorp water for example rocks, plastics, … after they got out of water? I have looked around and not a single clue or document that could help me

Hi everybody. I am seeking help regarding a project i've been assigned in my thermodynamics course. The project is: "A cylindrical duct is kept at a constant temperature Ts. The working fluid (air, liquid n-octane) enters at temperature Tin> Ts. Evaluate the distribution of the local heat flux as a

Ans: "Heat transfer is the energy transfer that is driven by temperature difference (gradient) between the system and the environment."

Answer: Condition of a system at any given instant. It is characterized by a series of observable (macroscopic quantities) called properties.

Ans: LMTD method can not be used unless all the temperatures at inlet and outlet of hot and cold fluids are known (or possible to calculate using energy balance equation).

Hi , I am new here and I don't have a strong background in mechanics or thermodynamics. I am just starting to explore this field. My problem is that I want to calculate the rising temperature of the liquid (lets just assume water, initial temperature 30℃) inside the tank while exposed to sunlight

Hello, I am a high school student who produces theoretical projects and presents them to 3rd party organizations. Recently I have been thinking about the inefficiency of “Steam Turbines”. As a solution to this, I thought that I could suggest using a different liquid instead of water, which is used i

What is the approaches that Stefan Boltzmann determined the constant sigma=5.6703×10-⁸(Wm-²k-⁴)? theoretical or experimental and how ?

I recently wrote a book on thermodynamcics titled “Weber’s Thermodynamics Notes”. The book uses a different approach to explain thermodynamics for a beginner in the subject matter. The book is on Amazon but can be viewed for FREE on www.wrenchtime.com (click Thermodynamics). I would appreciate any

I would like to use electric immersion elements like the ones used in residential hot water heaters to maintain the temperature of water at 100° C in a stainless steel container (photo attached). The base of the container is 72 by 40 cm, and the depth of the water would be approximately 14 cm, givin

Ans: A model is a mathematical representation that idealizes a "complicated" physical situation (or system) to a greater or lesser degree, depending on the interest and knowledge"

Answer: 1. jet engines 2. refrigerator 3. water pump 4. air compressor 5. solar over 6. radiator 7. petrol and diesel engines 8. air conditioners 9. thermal power plants 10. nuclear power plants 11. rockets 12. water heaters 13. electronic cooling systems, etc

Hi, why is it that when saturated steam with a quality of 0.5 is isentropically expanded in a turbine, the dryness fraction increases slightly? Shouldn't it go down? Thanks

Hi All I have an insulated composite wall. I know all of the thicknesses, K values and the inner wall temperature T1. How do I determine the outer wall temperature, T2, if I don't know the heat transfer rate Q? Thanks in advance for all of your help.

Hello all, i hope you're having a nice day. I have a question about analytical heat transfer coefficient (HTC) calculation/determination for a rectangular duct curved in a circle. I have found some literature on this topic and also found empirical equations for rectangular cross section straight wa

The following derivation for the residual Enthalpy equation was provided to me by my Thermo professor. This derivation will be evaluated in our final exam. What I don’t understand is how step 8 is achieved. The professor explained this step on the board which is the scribbles you can see to the left

Hi, I'm new in this forum . I have a simple but tricky question. If the the Carnot cycle has the major efficiency rather than every other cycle and it's efficiency is lower than 1 .... that means that the rate of temperature (Temperature in Kelvin scale) is bigger than 1..... but in order to respe

SteamPlot is a web-based application for calculating and observing thermodynamic states on interactive plots. Website: https://steamplot.com Tutorial: https://steamplot.com/tutorial

Ans: A process occurs when a system undergoes a change of state with or without interactions with the environment.

Ans: Observables (measurable macroscopic quantities) that are definable at a particular instant and are not dependant on the system's history. The property of the system is also called "state variable" examples: mass temperature energy enthalpy velocity position volume, etc

Answer: Efficiency is the ratio of what you "want" to what you "pay".