1. What is biomass? What are the different kinds of biomass used by the UI Steam

Question

1. What is biomass? What are the different kinds of biomass used by the UI Steam Plant, and the sources of each?

2. Why does the University of Idaho use biomass to generate steam? Explain the challenges of using biomass as a source of steam energy for University of Idaho.

3. What are environmental advantages/disadvantages of using biomass? Explain how the Steam Plant has contributed to production of clean energy and reduction of air pollutants

4. What are the measures put in place by the Steam Plant to ensure the sustainability of biomass?

5. Describe in your own words where the water used to make steam in the Plant comes from. Where does it go after being converted to steam? What happens to the water after it is used in the Steam Plant?

Explanation / Answer

1. Biomass is fuel that is produced from natural or organic materials, an inexhaustible and feasible wellspring of vitality used to make power or different types of power intensity.

Some examples of materials that make up biomass fuels are:

Biomass fuel goes to the UI Steam plant as natural gas and wood chips made principally out of western red cedar. Wood chips are sourced from the local neighborhood logging industry.

A natural gas boiler in the UI steam plant gives steam at high utilization times when the biomass evaporator can't meet the heap prerequisites. Petroleum gas is additionally used to warm structures not associated with the steam burrow framework and in look into research centers.

Recently they have started recycling waste to produce biomass within the campus itself.

2. University of Idaho has been using biomass as woodchips since 1986 for heating the campus and also most recently for air-conditioning it. By using biomass they claim to save  $5 million a year over the cost of natural gas. Other uses include:

Challenges:

3. Advantages of using biomass are as follows:

Disadvantages of Biomass:

The steam plant in UI campus has contributed to production of clean energy along with reduction of air pollutants in a varied way

The decreased warming estimation of the wood chip fuel is the essential cause for the decreased productivity when contrasted with petroleum gas, anyway the closeness of the fuel source still outcomes in considerable financial reserve funds and builds the supportability impression of the school because of lessened transportation costs.

Using biomass as a fuel source is by and large thought to be an earth well disposed intends to work boilers since it doesn't emanate net CO2 whenever combusted, not at all like non-renewable energy sources. On the off chance that the fuel can't be sourced locally the transportation costs, both monetarily and ecologically, could be costlier than energizes, for example, petroleum gas.

The biomass heater and heater represent the best exergy decimation, at around 68% of the aggregate exergy given by the fuel. Steam use on grounds speaks to 6% of exergy misfortunes while the weight reducer is in charge of 4%. Conceivable techniques for diminishing exergy misfortunes in these segments incorporate changes in the warming hardware on grounds and in addition changing the present plant by introducing a steam turbine and generator for power creation. Since work is thought to be unadulterated exergy, this would generously expand the exergy proficiency of the framework.

Other beniefits are as follows:

4. For sustainability of biomass in IU steam plant, the measures taken are as follows:

Sustainable power source achievability Studies – All UI property should be dissected to decide the achievability of building distinctive sustainable power source offices. With the goal for UI to achieve carbon lack of bias it must lessen the measure of vitality from carbon-escalated fuel sources.

Co-generationPlant – Change the current UI steam plant into a cogeneration office. The plant would create power and still create steam that could proceed being utilized to warmth and cool the grounds.

In Idaho's dry atmosphere, the chip fuel is put away in the open, in a vast off-grounds store that regularly has a few thousand tons of chips. Another secured stockpiling shed has as of late been worked to ensure a portion of the accumulated fuel from precipitation.

5. Water used to make steam in the Plant comes from water of Palause regional aquifers.

Steam is created in the boilers and leaves the boilers to enter a header. The header is a line that the majority of the boilers send their steam into. From that point, it either goes to grounds or to a turbine generator. As the steam enters the turbine, it makes the pole of the turbine turn. The pole is comprised of two interconnected parts: the turbine shaft and the generator shaft. The turbine shaft changes over steam control into mechanical power by turning. As the generator shaft turns through the generator lodging, an attractive field is put on the pole. As the attractive field goes through the wires in the generator lodging, electricity is produced. The waste water is then dumped to proper drainage system chanelizing it to preper pipelines to avoid any sort of contamination.

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