Assembly test-oven

Assembly of the test-oven. Nearly everything fits as planned. We’re getting closer to the first public pet-pyrolysis demonstration as an alternative for pet-cremation.

construction parts
The metal parts
door
The 90 mm door isolated with Promasil 1000 calcium silicate board
montage 2
Drilling holes for bottom screws
montage 3
Everything fits together.
montage 4
Vents holes and electrical and thermocouples wires on the backside
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Fu Shou Yuan

Fu Shou Yuan, valued at about $1.4 billion, expects death services in China to become a $16.5 billion industry by 2017. The company said that proceeds from the stock sell-off would be used to purchase land that is suitable for clients’ eternal slumber.

Image Credit: Flickr via Eddie Awad
Image Credit: Flickr via Eddie Awad

Despite its huge success, the Chinese government isn’t too thrilled about Fu Shou Yuan taking up valuable real estate in heavily congested cities. Amid criticism from both state media and members of the public, who assert that some burial service providers charge exorbitant fees and disregard industry standards, the communist government has recommended cremation – even burial at sea – as more sustainable alternatives.

“Despite the government’s disapproval, many Chinese still prefer traditional burial,” wrote Bloomberg. “For them, Fu Shou Yuan offers a wide selection that includes artistic tombs designed, as the company touts on its website, ‘totally according to the customers’ interest and requirements.’ … E-commerce is booming in China, so naturally Fu Shou Yuan has an online shopping option, with customers able to choose from more than 60 different tombstones.”

Those hoping to be enshrined at one of Fu Shou Yuan’s high-class burial facilities must have banks accounts as large as those of the celebrities already resting there. A plot in Shanghai reportedly sells for more than $30,000 – and that is the basic cost of land, without burial fees, headstones, or any other cemetery swag.

On the other hand, the Chinese government has promised to pay Shanghai residents’ families approximately $330 to scatter their ashes over Hangzhou Bay. With more than 9 million deaths a year, China is expected to run out of space to bury them in as little as six years.

source the diplomat

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Calcium Silicate isolation

The calcium silicate isolation, before the final assembly start it’s wise to check if everything is made according to plan. Two pieces are the wrong size. Luckily we have got extra material to experiment with and we can easily correct the problem. The CS board is Promatec 1000L bought by Moors Ovenbouw.  http://www.moorsovenbouw.nl/

Try to fit the pieces together, we have a gap.
Try to fit the pieces together, we have a gap.
Overlapping layers of CS board give a total of 90mm of isolation
Overlapping layers of CS board give a total of 90mm of isolation
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Burial Stress

Burials being delayed as floods create dangerous conditions at graveyards

Floods in Somerset and the Thames Valley have seen funerals put on hold as wet ground is too dangerous for gravediggers

Flooded cemeteries and even those outside flooded areas where the ground is waterlogged are causing difficulties in digging graves. Photograph: Michael Scott/Demotix/Corbis
Flooded cemeteries and even those outside flooded areas where the ground is waterlogged are causing difficulties in digging graves. Photograph: Michael Scott/Demotix/Corbis

 
The flood crisis is causing further anguish for bereaved families as wet ground is making burials impossible in the worst-hit areas.
Authorities say there is little they can do about weather-related funeral delays that have been described as “absolutely abnormal”. While families face the possibility of extra distress, the floods have created dangerous conditions for gravediggers.
Crematoriums have not been immune from the issue either, with one having to close for about two months due to flooding.
Source The Guardian 18-2-12014

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High temp, low pressure valve

It surprising difficult to find valves that are capable of handling low pressures by high temperatures. In order to pyrolyse material we have to prevent air to enter the pyrolysiscell. The pyrolysiscell has to be airtight but during the pyrolysis process volatile gases are formed, hydrogen and carbon based gasses like evaporating fat. In the first phase when we plan to dehydrate the corpse we must remove the water-vapor and bring fresh air in the cell. During the pyrolysis phase the produced gases are led to an afterburner that burns the hydrogen to water and volatile carbon gasses to CO2. All in all we need three valves that operate temperatures up to 500C and under 2 Bar of pressure.

A central heating valve demolished, a steel ball from a ball bearing as flow director and another problem is solved.
oneway valve heat resitant
steel ball flow control

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Watt meter

How to measure reliable the amount of electricity that’s being used by the demonstration pyrolysis cell? With a couple of KW infra-red heaters not so simple especially when you want to integrate the measurements in the computerlog of the test. To test the concept I took an old transformer, replaced the old secondary winding by two windings of the 230 volt wire. Curious if I get a good potential difference on the old primary winding. The primary winding is been shorted with a 20 Ohm resistor. And the voltage over the resistor can be converted in a digital value and fed into the control computer.

oldtrafo
Old trafo
Current trafo
Current trafo

 

principle of operation Source wikimedia

 

Care must be taken that the secondary of a current transformer is not disconnected from its load while current is flowing in the primary, as the transformer secondary will attempt to continue driving current across the effectively infinite impedance up to its core saturation voltage. This may produce a high voltage across the open secondary into the range of several kilovolts, causing arcing, compromising operator and equipment safety, or permanently affect the accuracy of the transformer. source wikipedia

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