Essays about: "save water and save electricity"

Showing result 1 - 5 of 29 essays containing the words save water and save electricity.

  1. 1. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  3. 2. Heat recovery from vacuum brazing furnaces

    University essay from Lunds universitet/Avdelningen för Installations- och klimatiseringslära

    Author : Oliver Robertsson; Rasmus Wikman; [2023]
    Keywords : Waste heat; Vacuum furnace; Heat recovery; HVAC; Technology and Engineering;

    Abstract : By partly replacing the use of primary energy sources with waste heat recovery, climate and environmental goals for the future will be closer at hand. This thesis investigates the waste heat potential of Alfa Laval's vacuum brazing furnaces in Ronneby and alternative ways of integrating the furnace's waste heat into the building's HVAC system. READ MORE

  4. 3. Thermal Investigation of the Green Revolution Energy Converter : A study on the heat transfer within the GREC in regards of temperature distribution and heat rate

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Wilma Fager; Maja Abrahamsson Bolstad; Emma Gustafsson; Emma Andersson; Matilda Eriksson; [2023]
    Keywords : GREC; Energy; Heat transfer; Heat rate; Temperature distribution;

    Abstract : To reduce emissions, new technological solutions can be of use. One technology which is currently being developed is the Green Revolution Energy Converter, GREC. GREC is an engine with the aim to produce electricity from temperature gradients.  This project is part of a greater project that is divided in two with different focus areas. READ MORE

  5. 4. Increasing water access throughhuman-centered design : Design of a off-grid water purifying devicein a resource constraint environment

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : David Sundvall; [2022]
    Keywords : human centered design; frugal innovation; Innovation; resource constrained environment; Bottom of the pyramid; BOP; Jugaad; resource constrained environment design; Mänskligt centrerad design; Sparsam innovation; Innovation; Resursbegränsad miljö; Botten av den socioekonomiska pyramiden; BOP; Jugaad; Resursbegränsad miljö design;

    Abstract : Patrick and Felicia are a couple who run a farm. Every day they harvest their crops and sell them at the local market. This is the family's everyday life and today's income goes to all the family'sexpenses such as food, water, and transport to the market. At the end of the day, the family's totalbudget results in plus or minus zero. READ MORE

  6. 5. Improvement of energy efficiency of the auxiliary steam system and rock-cavern storage at Karlshamnverket

    University essay from KTH/Energiteknik

    Author : Magnus Hammarling; Hugo Johansson; [2020]
    Keywords : ;

    Abstract : Goals: Increase the efficiency in the operation of the auxiliary boilers, and the utilization of the rock-cavern storage under a tecno- economic lens. Including in the work is modification and improvement of the plants documents regarding the planning of consumers in the auxiliary steam system. READ MORE