3 years ago

Thermo-environ-economic evaluation of a trigeneration system based on thermoelectric generator, two-bed adsorption chiller, and polymer exchange membrane fuel cell

Masood Ebrahimi, Ehsan Derakhshan

Publication date: 15 January 2019

Source: Energy Conversion and Management, Volume 180

Author(s): Masood Ebrahimi, Ehsan Derakhshan


In the present article, a cycle is proposed for combined production of cooling, heating and electricity. A polymer exchange membrane fuel cell is used as the prime mover. The waste heat is recovered by a plate heat exchanger, and the hot water is used as the heat source of a two-bed adsorption chiller, and heating as well. In addition, the excess hot and chilled water are used to generate electricity in thermoelectric generator. To feed the thermoelectric generator with a steady temperature hot/cold-thermal damping tanks are proposed and a procedure is developed to design them. The mathematical models of the fuel cell, adsorption chiller, and thermoelectric generator are validated with the results of other researchers. Detail design information is provided for the plate heat exchanger, hot/cold-thermal damping tanks, and fins of the sink/source sides of the thermoelectric generator. Parametric and sensitivity analyses are presented for four design parameters. The sensitivity analysis showed that overall efficiency is most/least sensitive to the current density/number of thermoelectric modules. For normal operating conditions the overall energy/exergy efficiencies are 75% and 53%. In comparison with the conventional systems the fuel energy saving ratio is 39% and 16.9 tons/year less carbon dioxide is produced. In addition, the for hydrogen price of less than 2 United States dollars per kilogram the CCHP can compete with conventional systems.

Graphical abstract

Graphical abstract for this article

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.