Author: Marcos

Pool heating

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OTHER APPLICATIONS

Pool heating

ppiscinas
Heated pools can be used as energy sinks for ENERBASQUE HRU equipment, with very high efficiencies achieved because all the heat generated in the boiler or through solar technology is used for electricity generation and for heat to warm the pool.

Although system electrical performance remains similar to any Organic Rankine Cycle, the thermal energy available in the condenser is fully exploited to achieve the desired temperature in pool heating, boosting overall system efficiency up to values associated with cogeneration.  The system’s flexibility means it can work equally in thermal or thermal/electrical mode. It also means it can meet not just the thermal demand for the pool heating system, but also the demand associated with the domestic hot water and HVAC for the rest of the sports facility. Integration of thermal energy generation systems can be limited to exclusively predictable renewable sources (biomass boilers), unpredictable sources (vacuum tube or concentration solar thermal heaters) or can even be supported by conventional generators (natural gas, propane, diesel boilers). Two typical solutions for electricity and heat generation are presented in the illustrations below.
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Geothermal

Posted on | by Marcos

OTHER APPLICATIONS

Geothermal

pgeotermica
There are numerous geothermal resources in the world with temperatures (over 85ºC/185ºF) and flow rates that are suitable for installing an ENERBASQUE HRU.

Whether these are only partially used or they are wasted entirely, HRU technology lets you exploit this type of resource to produce electricity.
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Solar thermal

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OTHER APPLICATIONS

Solar thermal

psolar
Hot water can be generated for heating or for certain processes that require it by using concentration technology or vacuum tube collectors. Excess heat is sometimes generated (in summertime or during process shut downs) that requires dissipation.

ENERBASQUE’s ORC technology lets you recover this waste heat and convert it into electrical energy.
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Biomass and waste valorization

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OTHER APPLICATIONS

Biomass and waste valorization

pbiomasa
Some industries and processes generate waste which can be burned in a biomass boiler, while complying with the environmental regulations in force in each territory, so avoiding the cost associated with handling it in a dump.

If the heat generated in the boiler cannot be used directly (for heating or for the process), either in whole or in part, it can be used to generate electrical power with ENERBASQUE’s ORC technology.
 
 
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Engines in vessels and ships​

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OTHER APPLICATIONS

Engines in vessels and ships​

A ship is an energy island when it is sailing. Using the waste heat from on-board power generation, both mechanical and electrical, increases energy efficiency and results in fuel and cost savings during voyages. The added advantage in this application is that it uses seawater itself in the HRU system to cool the condenser. This means there is no need to implement any additional cooling systems (cooling tower, air cooler) as is necessary in most land-based applications. This latter aspect, together with the rising cost of fuel, means the system has a very short pay-back period.

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Industrial Processes

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OTHER APPLICATIONS

Industrial processes

procesos industriales

Combustion systems are an indispensable part of numerous industrial production processes. The exhaust gases are evacuated to atmosphere at a high temperature in many of these. This dissipates thermal energy you could convert into a higher value added energy vector, such as electricity, by using HRU technology.

The temperature of these exhaust gases sometimes needs to be reduced for subsequent treatment, through dilution processes. This involves over-dimensioning the ducts and the tail-end exhaust systems, as they have to carry a higher flow rate than at the start.

Combustion gases from melting furnaces for various materials (steel, glass, aluminium) and from heat treatment furnaces, boiler exhaust gases, gas turbines and internal combustion engines are examples of processes in which, in the majority of cases, thermal energy is lost rather than being used.

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Motores estacionarios

Gensets

Posted on | by Marcos

OTHER APPLICATIONS

Gensets

Motores estacionarios

Internal combustion engines, whether diésel or gas, transform the energy from the fuel into mechanical or electrical energy (at 40%), while the rest is dissipated as heat:

  • Losses in cooling the engine block make up 25%
  • The exhaust gases account for 23%
  • The rest is lost in oil cooling (4%), intercooler (5%) and radiation (3%)

The principle of cogeneration precisely covers the use of the heat generated for other processes (drying products, heating spaces or processes, generating steam, etc.). There are applications though where this heat goes unused or is only partially used.
ENERBASQUE’s HRU machine can use the heat from the engine block (usually at between 85 and 95ºC), from the exhaust gas (at temperatures close to 300ºC) and even a combination of the two to generate electricity and increase overall engine efficiency. That means you generate additional kilowatts of electricity from the same fuel.

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