In the present work, an improved Entropy Generation Minimisation (EGM) approach aiming at minimising the revised entropy generation number which is the non-dimensionalised entropy by the ratio of heat flow to the input temperature of the cold fluid is developed for a plate-fin heat exchanger design with multiple design variables with the help of genetic algorithm. It is found that the approach can decrease the total fan power dramatically and improve the exchanger effectiveness simultaneously. Finally, this approach is applied to a heat recovery system where the heat exchanger works as a component of the system.
- Inderscience Publishers
- The Entropy Generation Minimisation based on the Revised Entropy ...
Heat Recovery Steam Generators (HRSG) & Blowdown Pump Stations
Romtec Utilities engineers and supplies pump stations for many different applications for industrial facilities across the country. These facilities range from chemical manufacturing to oil & gas refineries, and power generation is another industrial market where Romtec Utilities excels. We have supplied many different types of pumping systems for power gen facilities for wastewater, condensate, and other types of process water. A frequent scenario for a Romtec Utilities pump station is pumping for a heat...
Investigating the interactions of decentralized and centralized wastewater heat recovery systems
In the urban water cycle there are different sources for extracting energy. In addition to potential and chemical energy in the wastewater, thermal energy can also be recovered. Heat can be recovered from the wastewater with heat exchangers that are located decentralized and/or centralized at several locations throughout the system. It can be recovered directly at the source (e.g. in the showers and bathrooms), at building block level (e.g. warm water tanks collecting all grey water), in sewers or at the wastewater...
QinetiQ – Modular EU Compliant incineration package - Case Study
TodaySure™ were commissioned to construct an Integrated Battlefield Support System Incinerator as part of a Ministry of Defence funded research programme, to demonstrate that waste management can be achieved in a responsible way, compliant with challenging environmental standards. Designed to meet the stringent requirements of the EU Waste Incineration Directive, the combustion chambers, heat recovery system, flue gas abatement plant and the ancillary equipment, such as the emission monitoring equipment,...
Zoo-technical application of Ground Source Heat Pumps: a pilot case study
Ground Source Heat Pumps are energy-efficient HVAC systems usually adopted in residential and commercial buildings. However the control of the thermal environment is required not only in spaces occupied by people, but also in intensive breeding farms, in order to maintain healthy conditions and to increase productivity. In the Italian livestock breedings, heating is usuallyprovided by means of gas or Diesel burners directly installed in the stable. An important part of the heating load is due to the large ventilati...
Case study - Increasing primary heat recovery
OVERVIEWTekra Corporation is a custom coater of plastic films in Wisconsin, where state regulations require over 98% of the Volatile Organic Compounds (VOCs) emitted from their process be destroyed in an oxidizer system. While considering their first oxidizer system, Tekra`s Engineers did their homework and invested in an early model Regenerative Thermal Oxidizer (RTO). While at the time RTOs were not the cheapest oxidizer option capital-wise, Tekra knew that long-term, an RTO was their best choice for reliable...