Expansion of the district heating of the University of Valladolid with a hot water boiler with biomass

Installation of a hot water boiler with biomass to increase the power of the district heating of the University of Valladolid and, control system to reduce operating costs and improve its efficiency. Thus, with this expansion, not only the heat needs of the UVA and all public buildings in its network have been covered, but a step has also been taken in terms of energy efficiency.

 

SECTOR DISTRICT HEATING
COUNTRY SPAIN
INSTALLATION HOT WATER BOILER WITH MOBILE GRATE
POWER 5 MW
APPLICATION HEATING OF BUILDINGS
FUEL FOREST BIOMASS
SAVINGS (*)

412.000 €/year

5.645 ton/year CO2

(*) With respect to Natural Gas

 

DESCRIPTION

WHICH SOLUTION? Hot water boiler with mobile grate with emissions

WHICH FUEL? Forest Biomass

WHAT DOES THE PROJECT CONSIST OF? Heating with District Heating

WHAT PARTS DOES IT CONSIST OF? Hot water boiler with pyro tubular type biomass and mobile grate, automatic cleaning system, oxygen combustion control and bag filter.

WHAT IS THE ENERGY USED FOR? The hot water is used for heating the heat network of the University of Valladolid.

CLIENT: SOMACYL, Sociedad Pública de Infraestructuras y Medio Ambiente de Castilla y León

 

WHAT HAVE WE ACHIEVED WITH THIS PROJECT?

This project has allowed our client to replace fossil fuels with a clean and sustainable fuel such as biomass, reducing their annual heating bill as well as CO2 emissions, contributing to the fight against climate change.

Step by step, technical aspects and advantages: All about our hot water boiler with biomass and the benefits it brings

The project of expansion of the district heating of the University of Valladolid arises as a response to its need, both to cover the increase of the consumption of the buildings of its network, as well as to reduce the operating costs of the plant.

As a solution to these demands, INNERGY has designed, manufactured and supplied a hot water boiler with mobile grate biomass with emissions district heating process of the UVA.

The set provided is equipped with an HMI automation and control system which allows operators to optimize internal management and reduce costs. Through a direct touch on the surface of the screen it is possible to enter data, send commands to the device, visualize data graphically and manage alarms/historical. This industrial software has been programmed according to the installation, based on the needs expressed by our client. The system also allows the management from any portable device, being able to receive an email with the precise information.

The hot water boiler with biomass has several auxiliary equipment units in the installation, among which are the mobile grate, an ash extraction system that has several advantages:

  • It maximizes the annual availability of the plant.
  • It increases the flexibility of the fuel feed in terms of humidity, PCI, ash content, etc.
  • It reduces the maintenance costs associated with the automated systems.
  • It optimizes the combustion process to regulate the movement of biomass inside the chamber according to its properties.

Within the auxiliary equipment we also find the control of combustion by oxygen and filter of sleeves, which allow on one hand to optimize the combustion of the biomass and on the other mitigate and control the emissions of the plant.

Use of forest biomass as fuel: The hot water boiler with biomass supplied to the UVA, requires renewable and local fuels for the generation of heat. That is, thanks to the flexibility of the equipment it is possible to use a wide range of biomasses, allowing the use of easily accessible resources due to the proximity to the environment of the installation. More specifically regarding the district heating of the University of Valladolid, parts of poplar trees and wood chips are used as a sustainable fuel.

Automatic Cleaning System: The equipment has an automatic cleaning system which optimizes the work of both the hot water boiler and the operators, since it allows continuous work at maximum performance in terms of efficiency. This is because it keeps the exchange surface in constant cleaning during its operation, it also reduces the maintenance work, and therefore its costs.

Modular Compact Design: The equipment is composed of three modules, each of them in monobloc format, in turn all fit together resulting in a single interconnected block which allows for a functional and practical design. The objective is to generate a structure that optimizes space, improves performance and is more practical when doing maintenance. In the facilities of the University of Valladolid there was a problem of space which has been solved with a customized and more durable solution. In the images you can see the three mono blocks that make up the solution, which in addition to optimizing the space, guarantees transport. By moving the pieces together in a fully protected block, problems arising from the deformation or breakage of the parts are avoided.

 

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