Waste heat recovery helps in mcq

How good are you at mechanical engineering?

Which of the following depends on physical properties of fluids as well as geometry of the heat exchanger? The efficiency of a stand-alone gas turbine without any heat recovery system will be in the range of. The waste heat recovery equipment in a combustion system will be more economical when the exit flue gases are at a temperature of. In an industry, exhaust gas from the furnace is used for power generation by installing waste heat recovery steam boiler and a steam turbine. This type of co- generation is termed as.

Waste heat recovery helps in mcq

B a Fixed carbon b Volatile matter c Hydrogen d All of the above 23 Which one of the following boilers utilizes the combination of suspension and A grate firing? Oxidation of CO to CO2 will yield a kCal b kCal c kCal d kCal 48 The maximum loss that takes place in a fully condensing steam turbine power D plant is a Flue gas loss b Steam distribution loss c Radiation and insulation loss d Condenser losses 49 The difference between mean solid and mean gas velocity in FBC boiler is called B a Fluidization factor b Slip velocity c Settling velocity d Terminal velocity 50 Which one of the following is a high temperature heat recovery device? Then the type of co- generation is called as: a gas turbine b diesel generator c topping cycle d bottom cycle 73 1. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous. Carousel Next. What is Scribd? Academic Documents.

Shubham Agarwal. Therefore, the correct answer is "All of the above. By using a recuperator, the waste heat can be recovered and used to preheat the incoming air or fuel, thereby improving the overall energy efficiency of the furnace.

The most efficient solution of heat supply at low and medium temperature is: a. Using a fuel that is directly combusted in the energy consuming equipment. Using electricity. The most consumers of heat at low or medium temperature are supplied with heat using as energy carrier: a. Water in different forms.

With most of the world committed to limiting global warming to 1. As we approach the end of , we have only six years left to implement many decarbonization levers. But industrial companies are often uncertain about the right technical path to immediately reduce emissions. Technologies that are net present value NPV positive and quick to implement, such as various types of energy efficiency measures, can help companies achieve their decarbonization goals. Recovering waste heat is a potential avenue to effectively reducing emissions. Every year, the world consumes over exajoules EJ —or , terawatt-hours TWh —of final energy, mainly by burning fossil fuels and generating heat. Part of this generated heat is harnessed for useful purposes, such as producing electricity or driving chemical reactions, but most is unused. Recovering this waste heat can greatly reduce the use of primary fuels and, therefore, emissions.

Waste heat recovery helps in mcq

Of this, around one third is wasted. This wasted heat can be lost to the atmosphere at all stages of the process; through inefficient generation, transmission or final use of that energy. Waste heat recovery aims to minimize the amount of heat wasted in this way by reusing it in either the same or a different process. Waste heat can be recovered either directly without using a heat exchanger—e. Direct heat recovery is often the cheaper option but its use is restricted by location and contamination considerations. In indirect heat recovery, the two fluid streams are separated by a heat transfer surface, which can be categorized as either a passive or active heat exchanger.

Antique brass bathroom faucet

Did you find this document useful? The major limitation of metallic recuperator is The combination of the two propulsion systems allows for better fuel economy and reduced emissions, making HEVs a popular choice for individuals looking for a greener transportation option. Alkalinity Alkalinity. Explanation A regenerator is a high-temperature heat recovery device that is used to transfer heat from one fluid to another without mixing them. Therefore, all of the given reasons are valid for the development and sale of HEVs. Heat pumps, heat wheels, and none of the above options are not capillary wick structures. Mechanical Design, variant 1, midterm exam Mechanical Design, variant 1, midterm exam. The Voltaic Pile consisted of alternating layers of zinc and copper discs separated by cardboard soaked in saltwater. Answer Detailed Solution Below Option 1 : economiser. This technology is commonly used in various applications such as industrial machinery, automotive systems, and aerospace. Bee 1 Bee 1.

.

Search inside document. Report this Document. What does the cell usually use to produce energy? This team includes our in-house seasoned quiz moderators and subject matter experts. A bottoming cycle plant generates heat first. Combined cycle is a combination of. Radiation recuperators are used when the furnace flue gas temperature is more than. Explanation Toyota launched the first hybrid Prius in Japan in By preheating the boiler feed water, the economizer helps to conserve energy and reduce operating costs. It is more difficult to build the total price of purchasing and ownership increases. With this test, you will get to learn new things also, along with practice. This is because the electrolyte needs to be conductive to allow the flow of ions between the battery's electrodes, but using concentrated sulfuric acid would be too corrosive and dangerous. Did you find this document useful? The efficiency of a stand-alone gas turbine without any heat recovery system will be in the range of. Using intake air from the coolest location for compressed air system is: a.